nance, the unit will need to be re-timed to ensure machine balance,
equal loading of tine arms and optimum hole quality. There are two
separate procedures to properly time the aerator gear cases. Use the
following tips for each procedure when reassembling gear case.
A.
Timing upper and lower crank shafts on each individual gear
case
1.
The upper and lower crankshaft flywheels for each Tine
arm must be assembled so the offset shafts are located in
the same “clock” position. If upper offset shaft is posi-
tioned at 12 o’clock, then lower offset shaft must be at 12
o’clock position.
2.
To achieve the proper “clock” position for each gear case,
install Timing Bar (supplied with machine) to the upper
and lower crankshaft by aligning each roll pin and secur-
ing with socket head capscrew.
B.
Synchronizing gear cases
1.
The tine arms are numbered 1 to 4 from left to right, as
viewed from rear of machine. Each of the two gear cases
must be connected to each other in a proper phase to
ensure only one set of tines will enter the turf at a time.
2.
Rotate the number 1 tine arm to the 3 o’clock lowest posi-
tion as a starting point (Fig. ). When viewed from the left
side of the aerator, the remaining tine arms should be in
the 9 o’clock, 12 o’clock and 6 o’clock positions respec-
tively.
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